CN114034517A - Hydraulic drive type high-resolution deep sea sediment pore water in-situ fidelity sampler - Google Patents
Hydraulic drive type high-resolution deep sea sediment pore water in-situ fidelity sampler Download PDFInfo
- Publication number
- CN114034517A CN114034517A CN202110675118.4A CN202110675118A CN114034517A CN 114034517 A CN114034517 A CN 114034517A CN 202110675118 A CN202110675118 A CN 202110675118A CN 114034517 A CN114034517 A CN 114034517A
- Authority
- CN
- China
- Prior art keywords
- sampling
- sampler
- pore water
- plate
- plugboard
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
- G01N2001/1418—Depression, aspiration
- G01N2001/1427—Positive displacement, piston, peristaltic
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to a deep sea sampling technology, and aims to provide a hydraulic drive type high-resolution deep sea sediment pore water in-situ fidelity sampler. The method comprises the following steps: the sampling plug board unit, the sample storage and connection unit and the sampling pull unit; the sampling plug board unit comprises: a sampling plugboard, an anti-pollution baffle and a pore water sampler; the sampling plugboard is vertically arranged, a plurality of horizontal grooves are uniformly arranged on the surface of the plugboard at intervals, and a pore water sampler is arranged in each groove; an anti-pollution baffle which can move relative to the sampling insertion plate is arranged on the surface which is close to the sampling insertion plate, and a plurality of open holes which are matched with the horizontal grooves are formed in the anti-pollution baffle; each pore water sampler is connected to the sampling drawing unit through a sample storage and connection unit. The invention can simultaneously obtain a plurality of centimeter-level spaced high-resolution pore water samples, minimally reduce the disturbance to deep sea sediments, increase the accuracy of the pore water samples and reduce the volume of the device; can avoid the pollution of the pore water sampler in the process of inserting before sampling.
Description
Technical Field
The invention relates to a deep sea sampling technology, in particular to a hydraulic drive type high-resolution deep sea sediment pore water in-situ fidelity sampling device. The sampler can perform centimeter-level high-resolution fidelity sampling on deep-sea sediment pore water under the state of maintaining an original environment, so as to obtain fidelity pore water samples of different in-situ layers.
Background
The deep sea sediment pore water can usually reflect the existence form of the natural gas hydrate, and the natural gas hydrate is usually identified by detecting the abnormal marks of methane (hydrocarbon gas) and hydrogen sulfide (other gases) in the pore water and the surface sea water, so that a reference basis can be provided for efficient and rapid detection of the natural gas hydrate. Meanwhile, in a natural gas hydrate reservoir region, due to the common difference of pressure, temperature, concentration and components in the underground environment, hydrocarbon substances are dynamically transported to the surface layer from a deep part, so that the geochemistry characteristics in the medium such as shallow surface sediment, pore water, bottom water and the like are changed, and geochemical anomaly is formed. Therefore, the deep sea sediment pore water sampling research has important significance for the exploration and development of marine oil and gas resources, and can provide effective geochemical characteristic information particularly in the aspect of submarine natural gas hydrate exploration.
In deep sea sampling techniques, high resolution sampling typically means that the sampling site is dense in depth profile of the sediment. For subsea natural gas hydrate exploration, high resolution sampling can more accurately provide geochemical information in terms of the depth of the seafloor sediment pore water. The deep sea bottom is a high-pressure, low-temperature and strong-corrosion environment, the submarine topography is complex, and the surrounding seawater is in a dynamic change process all the time, so the conditions increase the difficulty in collecting the pore water of the submarine sediments.
The existing deep sea pore water sampling equipment is usually based on gravity or combines traditional sampling modes such as motor sampling, the structure of the sampling equipment is complex, the sampling depth and the point position are limited, and the problems of rich sampling density and sample amount cannot be considered at the same time. When the method is applied to the deep sea environment, the problems of difficulty in heat preservation and pressure maintaining and the like easily occur due to the complex deep sea environment, and in-situ fidelity sampling of the deep sea sediment pore water under high resolution is difficult to realize.
Therefore, it is necessary to develop an in-situ fidelity sampler for high-resolution deep-sea sediment pore water, which can obtain a non-disturbance and non-pollution high-resolution pore water sample.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects in the prior art and provides a hydraulic drive type high-resolution deep sea sediment pore water in-situ fidelity sampler. Therefore, the problem that sampling depth, sample amount and high resolution are difficult to simultaneously consider is solved, and the in-situ pore water fidelity sampling of the deep sea sediment with no pollution and high resolution is realized.
In order to solve the technical problem, the solution of the invention is as follows:
the hydraulic drive type high-resolution deep sea sediment pore water in-situ fidelity sampler comprises a sampling plugboard unit, a sample storage and connection unit and a sampling drawing unit; wherein, sample picture peg unit includes: a sampling plugboard, an anti-pollution baffle and a pore water sampler; the sampling plugboard is vertically arranged, a plurality of horizontal grooves are uniformly arranged on the surface of the plugboard at intervals, and a pore water sampler is arranged in each groove; an anti-pollution baffle which can move relative to the sampling insertion plate is arranged on the surface which is close to the sampling insertion plate, and a plurality of open holes which are matched with the horizontal grooves are formed in the anti-pollution baffle; each pore water sampler is connected to the sampling drawing unit through a sample storage and connection unit.
As a preferred scheme, the sampling inserting plate is movably connected with the anti-pollution baffle plate with a certain fastening force, and the anti-pollution baffle plate can be driven to move downwards when the sampling inserting plate moves downwards; the top end of the anti-pollution baffle is connected to a fixed anchor point (which can be an independent fixed bracket or a bracket on an underwater robot) through a steel wire rope, and a difference value is formed between the maximum stretching length of the steel wire rope during tensioning and the maximum stroke of the sampling inserting plate; after the sampling plugboard drives the anti-pollution baffle to move downwards to the maximum stretching length of the steel wire rope, the sampling plugboard can also continue to move for a distance, so that the positions of the corresponding holes on the pore water samplers and the anti-pollution baffle coincide with each other, and the pore water samplers and the anti-pollution baffle are exposed out of the holes (namely, the pore water samplers and the anti-pollution baffle are relatively moved by utilizing a specific stroke difference until the pore water samplers are changed from a shielded anti-pollution state to an exposed sampling state).
As the preferred scheme, still include a vertical fixed bolster, wire rope's fixed anchor point is located this fixed bolster's top, sample picture peg and anti-pollution baffle are installed in the limit structure on the fixed bolster.
As a preferred scheme, the top end of the upper part of the anti-pollution baffle is provided with a clamping sleeve structure; the cutting sleeve structure is movably arranged on the sampling inserting plate or is movably arranged on a vertical sliding rod attached to the sampling inserting plate.
Preferably, the top end of the lower part of the sampling inserting plate is provided with a shovel-shaped cutter head.
Preferably, the sampler also comprises a fixing plate and a driving hydraulic source; the fixed plate is horizontally arranged and used for bearing all parts of the sampler and fixedly installing the parts outwards, and the sampling plugboard is vertically and movably embedded on the fixed plate; the driving hydraulic source is connected to the transverse baffle plate on the sampling inserting plate through the connecting rod, so that the sampling inserting plate can displace in the direction vertical to the fixing plate.
Preferably, the driving hydraulic source is an independent driving hydraulic cylinder or a driving hydraulic cylinder shared by all devices in the underwater robot where the sampler is located.
As a preferred scheme, the sample storage and connection unit comprises a one-way valve, a first three-way valve, a sample storage pipe and a second three-way valve which are connected in sequence; each part of the sample storage and connection unit has the same number with the pore water sampler and is assembled in the following way: the check valve is connected to the pore water sampler, the second three-way valve is connected to the sampling pull unit, and the remaining interfaces of the two three-way valves are respectively connected to the respective pressure retaining valves.
As a preferred scheme, the sample storage tube is a PEEK capillary tube, and the sample storage tube is placed on a sample storage tube bracket in a disc mode; the one-way valve, the first three-way valve, the second three-way valve and the pressure maintaining valve are all fixed on the valve distributing support.
Preferably, the sampling drawing unit comprises a sampling hydraulic oil cylinder and a pressure maintaining cylinder, a piston is arranged in the pressure maintaining cylinder, and the sampling hydraulic oil cylinder is connected with the piston through connection (the sampling hydraulic oil cylinder drives the piston to move so as to realize sampling of the pore water sampler).
As a preferred scheme, the sampling drawing units have a plurality of groups, and each group has the same structure; each pore water sampler and the sample storage and connection unit are divided into the same groups and are respectively connected to each group of sampling drawing units.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the invention, a plurality of pore water samplers arranged in parallel at intervals are utilized to perform centimeter-level accurate airtight acquisition on pore water under the condition of maintaining the original state environment of deep sea pore water, so as to obtain fidelity pore water samples with different in-situ layer positions and high resolution. The invention provides an important technical means support for researches on delineating natural gas hydrate deposit areas, evaluating natural gas hydrate resources and the like in the development of a fidelity sampling technology of the submarine sediment pore water, and can be applied to the fields of marine natural gas hydrate exploration and exploitation, marine ecological environment monitoring and the like.
(2) The device can carry a deep sea moving platform to sample pore water in the deep sea of 3000 meters or more. During sampling, the pore water sampler drives a piston in the pressure maintaining cylinder by a sampling hydraulic oil cylinder to provide suction force for the pore water sampler to realize sampling; the principle is simple and does not need additional power.
(3) The pore filtering capillary tube made of the pore hydrophilic filter membrane can reduce the disturbance to deep sea sediments to the minimum degree during in-situ sampling, increase the precision of pore water samples and reduce the volume of the device.
(4) Pore water samplers are arranged on the sampling insertion plate in the vertical direction at intervals to perform deep sea sediment multi-layer position fidelity sampling, so that a plurality of centimeter-level spaced high-resolution pore water samples can be obtained simultaneously.
(5) The sample storage tube of the device controls the sample to enter and exit and be stored through two three-way valves, and convenience is provided for the subsequent pressure maintaining transfer of the sample.
(6) The cooperation of sample picture peg and anti-pollution baffle and the poor design of journey can avoid the in-process pore water sampler contaminated of inserting before the sample. The cutter head at the bottom end of the sampling inserting plate is of a shovel-shaped structure, so that resistance and disturbance to in-situ sediments during penetration into the seabed can be reduced.
Drawings
FIG. 1 is a diagram of an overall apparatus of the present invention;
FIG. 2 is a front view and a side sectional view of a sampling bayonet device of the present invention;
FIG. 3 is a schematic view of the valve arrangement of the present invention;
FIG. 4 is a schematic view of a sample pull unit of the present invention;
FIG. 5 is a schematic diagram of a sample storage and connection unit according to the present invention;
fig. 6 is a schematic structural diagram of a rhizozone pore water sampler used in the examples.
In the figure: 1 steel wire rope, 2 driving hydraulic oil cylinders, 3 sampling and drawing units, 4 anti-pollution baffles, 5 sample tube supports, 6 valve arrangement supports, 7 sample tube supports, 8 clamping sleeve structures, 9 (anti-pollution baffle) holes, 10 sampling inserting plates, 11 shovel-shaped cutter heads, 12 high-pressure three-way valve sets, 13 high-pressure one-way valve sets, 14 valve arrangement supports, 15 sampling hydraulic oil cylinders, 16 pressure maintaining cylinders, 17 pressure maintaining cylinder supports, 18 one-way valves, 19 first three-way valves 1, 20 second three-way valves 2, 21 sample inlet guide pipes, 22 sample outlet guide pipes, 23 pressure maintaining transfer guide pipes, 24 sample tubes, 25 pressure maintaining transfer guide pipes, 26 porous medium films, 27 supporting metal wires, 28PEEK capillary guide pipes and 29 Ruhr adapters.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments in conjunction with the accompanying drawings.
As shown in fig. 1, the hydraulic-driven high-resolution deep-sea sediment pore water in-situ fidelity sampler of the invention comprises a sampling plugboard unit, a sample storage and connection unit and a sampling drawing unit; wherein, sample picture peg unit includes: a sampling plug board 10, an anti-pollution baffle 4 and a pore water sampler; the fixing plate is horizontally arranged and used for bearing all parts of the sampler and fixedly installing the parts (underwater robot).
The sampling inserting plate 10 is vertically and movably embedded on the fixing plate vertically, a plurality of horizontal grooves are uniformly arranged on the surface of the sampling inserting plate at intervals, and a pore water sampler is arranged in each groove; an anti-pollution baffle 4 which can move relative to the sampling insertion plate 10 is arranged on the surface of the sampling insertion plate in a clinging mode, and a plurality of open holes 9 matched with the horizontal grooves are formed in the anti-pollution baffle 4. The sampler also comprises a driving hydraulic source; the driving hydraulic source is connected to the transverse baffle plate on the sampling insertion plate 10 through a connecting rod, so that the sampling insertion plate 10 can displace in the direction vertical to the fixing plate. The driving hydraulic source can be an independent driving hydraulic oil cylinder, and can also be a driving hydraulic oil cylinder shared by all devices in the underwater robot where the sampler is located.
The sampling inserting plate 10 is movably connected with the anti-pollution baffle 4 with a certain fastening force, and the anti-pollution baffle 4 can be driven to move downwards when the sampling inserting plate 10 moves downwards. The top end of the anti-pollution baffle 4 is connected to a fixed anchor point through a steel wire rope 1, and a difference value is formed between the maximum stretching length of the steel wire rope 1 when the steel wire rope is tensioned and the maximum stroke of the sampling inserting plate 4; after the sampling inserting plate 10 drives the anti-pollution baffle 4 to move downwards to the maximum stretching length of the steel wire rope 1, the sampling inserting plate 10 can also continue to move for a certain distance, so that the positions of the corresponding open holes 9 on each pore water sampler and the anti-pollution baffle 4 are overlapped with each other, and the pore water samplers are exposed out of the open holes 9. The sampler also comprises a vertical fixed support, the fixed anchor point of the steel wire rope 1 is positioned at the top end of the fixed support, and the sampling plugboard 10 and the anti-pollution baffle 4 are arranged in the limit structure on the fixed support. The top end of the upper part of the anti-pollution baffle 4 is provided with a cutting sleeve structure 8; the ferrule structure 8 is movably mounted on the sampling inserter 10 (or movably mounted on a vertical slide bar attached to the sampling inserter 10). The top end of the lower part of the sampling inserting plate 10 is provided with a shovel-shaped cutter head.
Each pore water sampler is connected to the sampling drawing unit through a sample storage and connection unit. The sample storage and connection unit comprises a one-way valve 18, a first three-way valve 19, a sample storage pipe 24 and a second three-way valve 20 which are connected in sequence; each part of the sample storage and connection unit has the same number with the pore water sampler and is assembled in the following way: the one-way valve 18 is connected to the pore water sampler, the second three-way valve 20 is connected to the sampling pulling unit, and the remaining ports of the two three-way valves are respectively connected to the respective pressure retaining valves. The sample storage tube 24 is a PEEK capillary tube and is placed on the sample storage tube bracket 7 in a disc mode; the one-way valve 18, the first three-way valve 19, the second three-way valve 20 and the pressure maintaining valve are all fixed on the valve distributing support 6.
The sampling drawing unit 3 comprises a sampling hydraulic oil cylinder 15 and a pressure maintaining cylinder 16, a piston is arranged in the pressure maintaining cylinder 16, and the sampling hydraulic oil cylinder 15 is connected with the piston through connection. The sampling drawing unit can be provided with a plurality of groups, and each group has the same structure; each pore water sampler and the sample storage and connection unit are divided into the same groups and are respectively connected to each group of sampling drawing units. The design can miniaturize the sampler and facilitate installation and maintenance.
More specifically described:
in the embodiment, horizontal small grooves are formed on the surface of the sampling inserting plate 10 every 2cm along the vertical direction, and 24 pore water samplers are distributed and fixed in a clamping mode; the pore water sampler may be a product of Rhizon corporation, and its structure is shown in FIG. 6. The Rhizon pore water sampler is made of a white porous hydrophilic filter membrane with the average pore diameter of 0.15 mu m, can automatically wet and does not generate adsorption, has minimal damage to the hydraulic property of deep sea sediments, and can quickly restore the deep sea sediments to a normal state.
Before sampling, the pore water sampler is covered by the part between the openings 9 of the anti-pollution baffle 4, so that sediment is prevented from polluting the pore water sampler when the anti-pollution baffle is inserted into the seabed. When the insertion process is about to end, the steel wire rope makes the position of the open hole 9 of the anti-pollution baffle plate 8 coincide with the pore water sampler by utilizing the stroke difference between the steel wire rope and the sampling inserting plate 10, and the steel wire rope is in a sampling state. Because the final stroke difference displacement amount is small and the displacement speed is slow, the disturbance or pollution caused by the displacement is negligible. The shovel-shaped cutter head 1 can reduce the resistance when penetrating into the seabed and avoid disturbance to the in-situ sediment.
In the sample holding and connecting unit, the sample inlet conduit 21, the sample outlet conduit 22 and the sample holding tube 24 are made of PEEK capillary tubes. PEEK is a high temperature resistant thermoplastic with properties of high temperature resistance, self-lubrication and fatigue resistance, and is used as a preferred material. Wherein, the sample storage tube 24 is 5 meters long, and the disc is placed on the sample storage tube bracket 5 and used for storing and extracting the obtained pore water sample. The sample inlet pipe 21 is connected with a pore water sampler, and the sample outlet pipe 22 is connected with a pressure maintaining cylinder 16 in the sampling drawing unit 3. Before sampling, the two three-way valves are both in a closed state, the first three-way valve 19 and the second three-way valve 20 at two ends of the sample storage pipe 24 are communicated during sampling, and a pore water sample flows into the sample storage pipe 24 through the pore water sampler. After sampling is finished, the switch of the two-way valve and the three-way valve is switched on, and the two-way valve and the three-way valve are switched to the pressure maintaining transfer conduits 23 and 25 to perform pressure maintaining (the connected valves are not shown in fig. 6), and pressure maintaining transfer operation is performed subsequently.
The sampling drawing unit 3 is divided into four groups, and each group comprises a sampling hydraulic oil cylinder 15 and a pressure maintaining cylinder 16. Each group is corresponding to each layer of valve support, so that samples of all point positions can be better identified. The drawing action of the piston inside the pressure-holding cylinder 16 is driven by the sampling hydraulic cylinder 15 through a connecting rod. Before sampling, the piston and the connecting rod are positioned at the bottom end of the pressure maintaining cylinder 16, and air in the pressure maintaining cylinder 16 is emptied; during sampling, the sampling hydraulic oil cylinder 15 drives the piston and the connecting rod upwards to the top, so that a vacuum environment is formed in the pressure maintaining cylinder 16, and pore water is driven to flow into the sample storage tube 24 through the pore water sampler.
Description of the sampling process:
the whole set of sampling device is carried on an underwater robot or a movable ground detection platform, and a hydraulic oil cylinder 2 is driven to arrange sampling inserting plates 10 in a deep sea shallow sediment soil layer so as to carry out high-resolution sampling on pore water in the sediment soil layer of a seabed shallow layer (within 50 cm). Since the penetration of the sampling insert 10 inevitably disturbs the deposit layer, a waiting period is required before the sampling is started. After the external soil environment is stabilized, the steel wire rope pulls the anti-pollution baffle 8 through the stroke difference of the last section, and the pore water sampler is contacted with the deep sea sediment. Before sampling begins, the sample tube 24 is pre-filled with high-pressure deionized water, the two three-way valves are in a conducting state, and the piston in the pressure maintaining cylinder 16 is positioned at the bottom end of the pressure maintaining cylinder. And when the sampling action is started, the sampling hydraulic oil cylinder 15 is controlled to move the piston in the pressure-maintaining cylinder upwards, the deionized water in the sample storage pipe 24 is sucked into the pressure-maintaining cylinder by virtue of negative pressure, and the pore water sample in the deep sea sediment flows into the sample storage pipe 24 through the pore water sampler. Therefore, in the embodiment, the seabed multi-layer position pore water samples are constructed by the density of 24 pore water samplers spaced 2cm apart, and high-resolution three-dimensional sampling is realized. The sample storage mode is simple and reliable, and the change relation of the pore water sample in the time sequence can be analyzed.
Finally, it is noted that the above list is only a specific example of the present invention. It is obvious that the present invention is not limited to the above embodiments, but many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the invention.
Claims (11)
1. A hydraulic drive type high-resolution deep sea sediment pore water in-situ fidelity sampler is characterized by comprising a sampling plugboard unit, a sample storage and connection unit and a sampling drawing unit; wherein, sample picture peg unit includes: a sampling plugboard, an anti-pollution baffle and a pore water sampler;
the sampling plugboard is vertically arranged, a plurality of horizontal grooves are uniformly arranged on the surface of the plugboard at intervals, and a pore water sampler is arranged in each groove; an anti-pollution baffle which can move relative to the sampling insertion plate is arranged on the surface which is close to the sampling insertion plate, and a plurality of open holes which are matched with the horizontal grooves are formed in the anti-pollution baffle; each pore water sampler is connected to the sampling drawing unit through a sample storage and connection unit.
2. The sampler according to claim 1, wherein the sampling insertion plate is movably connected with the anti-pollution baffle plate with a certain fastening force, and the sampling insertion plate can drive the anti-pollution baffle plate to move downwards when moving downwards; the top end of the anti-pollution baffle is connected to the fixed anchor point through a steel wire rope, and a difference value is formed between the maximum stretching length of the steel wire rope during tensioning and the maximum stroke of the sampling inserting plate; when the sampling plugboard drives the anti-pollution baffle to move downwards to the maximum stretching length of the steel wire rope, the sampling plugboard can continue to move for a certain distance, so that the positions of the corresponding holes on each pore water sampler and the anti-pollution baffle are overlapped with each other, and the pore water sampler is exposed out of the holes.
3. The sampler of claim 2, further comprising a vertical fixing support, wherein the fixing anchor point of the steel wire rope is positioned at the top end of the fixing support, and the sampling insertion plate and the anti-pollution baffle plate are arranged in a limiting structure on the fixing support.
4. The sampler of claim 1, wherein the upper top end of the anti-pollution baffle is provided with a cutting sleeve structure; the cutting sleeve structure is movably arranged on the sampling inserting plate or is movably arranged on a vertical sliding rod attached to the sampling inserting plate.
5. A sampler according to claim 1, wherein the lower top end of the sampling insert plate is provided with a spade bit head.
6. The sampler of claim 1, further comprising a holding plate and a source of drive hydraulic pressure; the fixed plate is horizontally arranged and used for bearing all parts of the sampler and fixedly installing the parts outwards, and the sampling plugboard is vertically and movably embedded on the fixed plate; the driving hydraulic source is connected to the transverse baffle plate on the sampling inserting plate through the connecting rod, so that the sampling inserting plate can displace in the direction vertical to the fixing plate.
7. A sampler according to claim 6, in which the drive hydraulic source is an independent drive hydraulic cylinder or a drive hydraulic cylinder common to the devices in the underwater robot in which the sampler is located.
8. The sampler of any one of claims 1 to 7, wherein the sample storage and connection unit comprises a one-way valve, a first three-way valve, a sample storage tube and a second three-way valve connected in sequence; each part of the sample storage and connection unit has the same number with the pore water sampler and is assembled in the following way: the check valve is connected to the pore water sampler, the second three-way valve is connected to the sampling pull unit, and the remaining interfaces of the two three-way valves are respectively connected to the respective pressure retaining valves.
9. The sampler of claim 8, wherein the sample tube is a PEEK capillary tube, and the plate is placed on the sample tube holder; the one-way valve, the first three-way valve, the second three-way valve and the pressure maintaining valve are all fixed on the valve distributing support.
10. The sampler of any one of claims 1 to 7, wherein the sampling drawing unit comprises a sampling hydraulic cylinder and a pressure maintaining cylinder, a piston is arranged in the pressure maintaining cylinder, and the sampling hydraulic cylinder is connected with the piston through a connection.
11. The sampler of claim 10, wherein the sample drawing unit has a plurality of groups, each group having the same structure; each pore water sampler and the sample storage and connection unit are divided into the same groups and are respectively connected to each group of sampling drawing units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110675118.4A CN114034517A (en) | 2021-06-18 | 2021-06-18 | Hydraulic drive type high-resolution deep sea sediment pore water in-situ fidelity sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110675118.4A CN114034517A (en) | 2021-06-18 | 2021-06-18 | Hydraulic drive type high-resolution deep sea sediment pore water in-situ fidelity sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114034517A true CN114034517A (en) | 2022-02-11 |
Family
ID=80134253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110675118.4A Pending CN114034517A (en) | 2021-06-18 | 2021-06-18 | Hydraulic drive type high-resolution deep sea sediment pore water in-situ fidelity sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114034517A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114673503A (en) * | 2022-03-15 | 2022-06-28 | 广州海洋地质调查局 | Seabed manganese nodule collector and collection method |
| CN114674614A (en) * | 2022-03-29 | 2022-06-28 | 广州海洋地质调查局 | In-situ layered collection device and method for pore water of submarine sediment |
| CN114878210A (en) * | 2022-05-06 | 2022-08-09 | 国家深海基地管理中心 | Siphon type biological fidelity sampler of underwater carrier |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108303287A (en) * | 2017-12-27 | 2018-07-20 | 中国科学院南海海洋研究所 | A kind of halmeic deposit pore water original position automatic acquisition device easy to operate |
| CN108387400A (en) * | 2018-05-28 | 2018-08-10 | 南京信息工程大学 | A kind of Sediment Pore Water original position high-resolution sampler |
| CN108645668A (en) * | 2018-07-09 | 2018-10-12 | 广州海洋地质调查局 | The long-term in-situ sampling of pore water and analytical equipment and its method |
| CN112485065A (en) * | 2020-12-22 | 2021-03-12 | 广州海洋地质调查局 | In-situ pore water fidelity sampler and method for seabed surface sediment |
| CN112945631A (en) * | 2021-01-29 | 2021-06-11 | 浙江大学 | Pressure maintaining transfer device for deep sea pore water |
-
2021
- 2021-06-18 CN CN202110675118.4A patent/CN114034517A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108303287A (en) * | 2017-12-27 | 2018-07-20 | 中国科学院南海海洋研究所 | A kind of halmeic deposit pore water original position automatic acquisition device easy to operate |
| CN108387400A (en) * | 2018-05-28 | 2018-08-10 | 南京信息工程大学 | A kind of Sediment Pore Water original position high-resolution sampler |
| CN108645668A (en) * | 2018-07-09 | 2018-10-12 | 广州海洋地质调查局 | The long-term in-situ sampling of pore water and analytical equipment and its method |
| CN112485065A (en) * | 2020-12-22 | 2021-03-12 | 广州海洋地质调查局 | In-situ pore water fidelity sampler and method for seabed surface sediment |
| CN112945631A (en) * | 2021-01-29 | 2021-06-11 | 浙江大学 | Pressure maintaining transfer device for deep sea pore water |
Non-Patent Citations (1)
| Title |
|---|
| 韩俊等: "基于单片机控制的孔隙水自动采样器", 《机电工程》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114673503A (en) * | 2022-03-15 | 2022-06-28 | 广州海洋地质调查局 | Seabed manganese nodule collector and collection method |
| CN114673503B (en) * | 2022-03-15 | 2022-10-21 | 广州海洋地质调查局 | Seabed manganese nodule collector and collection method |
| CN114674614A (en) * | 2022-03-29 | 2022-06-28 | 广州海洋地质调查局 | In-situ layered collection device and method for pore water of submarine sediment |
| CN114878210A (en) * | 2022-05-06 | 2022-08-09 | 国家深海基地管理中心 | Siphon type biological fidelity sampler of underwater carrier |
| CN114878210B (en) * | 2022-05-06 | 2024-05-31 | 国家深海基地管理中心 | Siphon type biological fidelity sampler for underwater carrier |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114034517A (en) | Hydraulic drive type high-resolution deep sea sediment pore water in-situ fidelity sampler | |
| US11162876B2 (en) | Long-term in-situ sampling and analysis device for sediment pore water and method thereof | |
| CN112858113B (en) | Microscopic visual experimental method for high-temperature high-pressure gas flooding of deep reservoir | |
| EP3798365A1 (en) | Seabed static penetration device and penetration method based on marine observation probe rod | |
| JP6758585B2 (en) | In-situ test equipment and methods for detecting the amount of internal contaminants released in seafloor sediments by simulating wave action. | |
| EP1988254A2 (en) | Cable downhole gas chromatograph and a downhole gas chromatography method | |
| CN103144751B (en) | A kind of beach shallow sea sediment strength in situ detection device and method | |
| CN110389054A (en) | The long-term in-situ sampling of the big depth section pore water of bottom sediment and analysis method | |
| CN104715674B (en) | Seabed hydrocarbon leakage simulation experiment device and experiment method thereof | |
| CN110398397B (en) | High dam deep reservoir layering water sample multidimensional fidelity acquisition and water quality monitoring artificial intelligence device | |
| CN108169460B (en) | Simulation test method for water-soluble gas transportation of basin | |
| CN113049313B (en) | Water and soil combined sampler and method suitable for beach shallow sea | |
| CN104833547B (en) | A kind of pore water water acquisition post in situ and water sampling method | |
| CN101793635A (en) | Shallow water low-disturbed sediment sampler | |
| KR20120107111A (en) | Determining methane content of a bottom sample | |
| CN110736645A (en) | deep sea water body sequence sampling device with through-flow structure | |
| US11035231B2 (en) | Apparatus and methods for tools for collecting high quality reservoir samples | |
| CN111397968B (en) | Device for in-situ collection of pore water and gas in sediment and wetland soil | |
| CN212111387U (en) | Water quality detection system based on unmanned aerial vehicle | |
| CN110389053A (en) | The long-term in-situ sampling of the big depth section pore water of bottom sediment and analytical equipment | |
| CN201662488U (en) | Shallow-water mild-disturbance sediment sampler | |
| US20200209212A1 (en) | Mobile facility for analysing a fluid | |
| CN108508179B (en) | Water-soluble gas migration simulation device | |
| JP2023126737A (en) | Fluid sampling device | |
| US20130220594A1 (en) | Tube-in-tube device useful for subsurface fluid sampling and operating other wellbore devices |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |